Oh like your Saturday is going any better. I know my knowledge is limited here, so help me out nerds. Let me also stress the difference between supernatural and sci-fi, i.e. no lightsabers.
  1. โ€ข
    Dragon glass
    Power: Currently one of two known materials that can kill a white walker, which is kinda a big deal. Diagnosis: Doesn't really matter anymore because Jon forgot the fucking bag in that hut that was burning down. Rating: ๐Ÿ—ก๐Ÿ—ก
  2. โ€ข
    Lucy's Dagger
    lol ALRIGHT, Bitch. ๐Ÿ”จ
    Suggested by @michael_circa91
  3. โ€ข
    Power: Glows blue whenever orcs (bad guys) are in the vicinity. Diagnosis: Okay as a sword, pretty damn useful as an Orc Amber Alert. Rating: ๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก
  4. โ€ข
    Hagrid's umbrella
    Power: limited magic capability. Insufficient size to effectively keep a half-giant dry. Can transfigure pig tails affixed to a designated rear end. Rating: ๐Ÿ—ก๐Ÿ—กโ˜‚
    Suggested by @TheSteve
  5. โ€ข
    Proton pack
    Power: Able to trap/contain ghosts using the proton stream it emits. Diagnosis: Pretty much only useful when ghosts are attacking your city, but then they're REALLY useful. Rating: โš”
  6. โ€ข
    Power: Made of Valyrian steel, which is currently the second known material that can kill a white walker. Diagnosis: Currently not in use... Ranking: ๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก
  7. โ€ข
    The White Witch's wand
    Power: Turns things it touches to stone, is pointy. Diagnosis: I appreciate its simplicity. Rating: ๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก
  8. โ€ข
    Harry Potter's wand
    Power: Same as any other, except it starts acting strange and doing cool stuff when it's around Voldemort's wand. Diagnosis: It really depends what Harry does, and what Harry does is get it snapped in two in Book 7. But like, even so, it's probably more potentially powerful than a nuclear bomb, so you have to give it that. Rating:๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก
  9. โ€ข
    The Light of Earendil
    Power: Um, it lights up and evil things don't like it? Diagnosis: I feel like it is possibly one of the most powerful objects in the Lord of the Rings universe, but Frodo "Hindsight Is 20/20" Baggins basically only uses it once, as a glorified flashlight. Ugh Lady G shoulda just given it straight to Sam. Rating: โš”โš”
  10. โ€ข
    Mirror of Erised
    An intellectual weapon. ๐Ÿ•ต๐Ÿ•ต
    Suggested by @lesleyann
  11. โ€ข
    Gandalf the Grey's staff
    Power: A variety of powerful wizard stuff that usually takes the form of blasting things apart, also contains this pretty powerful shield mechanism called the Flame of Anor. But that's for special occasions. Diagnosis: Definitely useful, but not that crazy. Rating: โš”โš”๐Ÿ—ก
  12. โ€ข
    The Lasso of Truth
    Power: So, um, it makes whoever is trapped in it tell the truth. I think. Diagnosis: Powerful if you use it right, comical otherwise. Rating: ๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก๐Ÿ”ช
  13. โ€ข
    Power: It's a hammer that can hit really hard. It's also a boomerang. And it can summon lightning and make you fly. But only if it like, dubs you worthy to carry it, and this is one snobby hammer, so that probably won't happen. Diagnosis: If you're pure of heart and all that, more power to you, if you're not, go find a gun. Rating: โš”๐Ÿ—ก๐Ÿ—ก
  14. โ€ข
    Voldemort's wand
    Power: Powered by evil vibes, basically, but also kinda goes rogue when it gets in the vicinity of its brother, Harry's wand. Diagnosis: It can and will kill you. Rating: ๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก
  15. โ€ข
    Saruman's staff
    Power: A random grab bag of usually telekinetic powers. Diagnosis: Ain't too powerful anymore is it. I like the symmetry between Saruman's staff and Saruman's tower tho. Tim Gunn was probably like make it workkk so Saruman made it work. Power: โš”โš”๐Ÿ—ก๐Ÿ”ช
  16. โ€ข
    Power: The one wielding it can command an invincible army of ghosts that literally no one can beat. Diagnosis: Not too shabby. Rating: ๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก๐Ÿ—ก
  17. โ€ข
    Gandalf the White's staff
    Power: Basically the same as Grey's staff, except a little further up the wizard chain of command and therefore contains just a bit more oomph. Now with more exorcism powers! Diagnosis: The Witch King 100% shattered this bitch to splinters in the extended edition of Return of the King, and I have no idea where in the hell Gandalf got a new one so quickly. Rating: โš”โš”โš”
  18. โ€ข
    The Elder Wand
    Power: Supposedly the most powerful wand in existence. Diagnosis: It's more of a it's-not-the-size-that-counts-it's-how-you-use-it situation. Also is very particular about who is using it. Rating: โš”โš”โš”
  19. โ€ข
    The One Ring
    Power: Ok this one's tricky. I'm pretty sure it just makes people turn to evil and also just augments their power by a lot, but it also kinda contains the soul of the big bad dark lord, and it also makes you invisible when you wear it, because fuck it why not. Diagnosis: It's a pretty damn important piece of jewelry. It's kinda the center of the spotlight. It's kinda a big deal. Rating: โš”โš”โš”โš”
  20. โ€ข
    The Infinity Stones
    Power: Um. Ok. Ok how do I put this? They basically control everything. Time, space, power, magic, thought. They cover the lot. Diagnosis: They gon fuck you up in a real way. Rating: โš”โš”โš”โš”โš”โš”โš”โš”โš”โš”